xmalloc.h

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/*
 * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
 *
 * This file is part of libFirm.
 *
 * This file may be distributed and/or modified under the terms of the
 * GNU General Public License version 2 as published by the Free Software
 * Foundation and appearing in the file LICENSE.GPL included in the
 * packaging of this file.
 *
 * Licensees holding valid libFirm Professional Edition licenses may use
 * this file in accordance with the libFirm Commercial License.
 * Agreement provided with the Software.
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE.
 */

#ifndef FIRM_ADT_XMALLOC_H
#define FIRM_ADT_XMALLOC_H

#include <stddef.h>
#include <stdlib.h>
#include <string.h>

/* Includes for alloca() */
#ifdef _WIN32
#include <malloc.h>
#endif
#if defined(__linux__) || defined(__APPLE__)
#include <alloca.h>
#endif

#include "../begin.h"

FIRM_API void *xmalloc(size_t size);
FIRM_API void *xrealloc(void *ptr, size_t size);
FIRM_API char *xstrdup(const char *str);
#define xfree(ptr)      free(ptr)

#define XMALLOCN(type, n) ((type*)xmalloc(sizeof(type) * (n)))

#define XMALLOCNZ(type, n) ((type*)memset(xmalloc(sizeof(type) * (n)), 0, sizeof(type) * (n)))

#define XMALLOC(type) XMALLOCN(type, 1)

#define XMALLOCZ(type) XMALLOCNZ(type, 1)

#define XREALLOC(ptr, type, n) ((type*)xrealloc(ptr, sizeof(type) * (n)))

#define XMALLOCF(type, member, n) ((type*)xmalloc(offsetof(type, member) + sizeof(*((type*)0)->member) * (n)))

#define XMALLOCFZ(type, member, n) ((type*)memset(XMALLOCF(type, member, (n)), 0, offsetof(type, member) + sizeof(*((type*)0)->member) * (n)))

#define ALLOCAN(type, n) ((type*)alloca(sizeof(type) * (n)))

#define ALLOCANZ(type, n) ((type*)memset((type*)alloca(sizeof(type) * (n)), 0, sizeof(type) * (n)))

#define OALLOCN(obst, type, n) ((type*)obstack_alloc((obst), sizeof(type) * (n)))

#define OALLOCNZ(obst, type, n) ((type*)memset(OALLOCN((obst), type, (n)), 0, sizeof(type) * (n)))

#define OALLOC(obst, type) OALLOCN(obst, type, 1)

#define OALLOCZ(obst, type) OALLOCNZ(obst, type, 1)

#define OALLOCF(obst, type, member, n) ((type*)obstack_alloc((obst), offsetof(type, member) + sizeof(*((type*)0)->member) * (n)))

#define OALLOCFZ(obst, type, member, n) ((type*)memset(OALLOCF((obst), type, member, (n)), 0, offsetof(type, member) + sizeof(*((type*)0)->member) * (n)))

#include "../end.h"

#endif